Lock switch



.1. D. TAYLOR ,LOCK SWITCH May 21, 1935.

Filed July15, 1953 2 Sheets-Sheet l FIG, 5.

May 21, 1935. J. D. TAYLOR 2,002,047

LOCK SWITCH Filed July 15, 1953 2 Sheets-Sheet 2 Patented May 21, 1935 UNITED STATES PATENT OFFICE Application July 175, 1933, Serial No. 680,618 In Great Britain June 9, 1932 2 Claims.

My invention relates to improvements in or relating to lock switch which I shall hereinafter designate vehicle all as hereinafter described with reference to the drawings and pointed out in the claims.

In order that my invention may be properly understood and readily carried into effect, I have hereunto appended drawings:

Figure 1 is an end view of` device constituting my invention, y

Figure 2 is a sectional elevation. ,Y

Figure 3 is a sectional elevation with lever in one position.

Figure 4 is a sectional elevation with lever in another position.

Figure 5 is a part plan of Figure 2.

Figure 6 shows the electrical wiring to device.

Figures l and 8 are edge and front View respectively of portion of a door and frame.

Figure 9 is a view showing device as applied to a brief case.

Figure l0 is a part sectional View showing device applied to a window.

According to my invention and referring to the drawings I provide a casing A with flange B having on the front end thereof suitable holes b for attachment to the door of the vehicle in which the device is carried. It consists of a metal body C having a keyhole D and longitudinal slots E which intersect the keyhole D, two of the slots E each contain a contact lever F and another slot contains a control lever G, all being pivoted on a pin H fixed to the body C of the device. A fiat spring J is also attached to the body C, the end of which bears on the top edge oi the Contact lever F. An insulated member K is also suitably attached to the body C and has a contact bar L contained within it. A suitable insulated wire M is attached to the contact bar L and is carried 40 in one of the slots E to the back of the device. A forked lever N is pivoted to a bracket O which is connected along one side to the lower portion of the member K, and permits fastening thereto along its opposite side wall the disc Q. The forked lever N is provided adjacent its lower end with the transversely projecting plate P which extends below the contact levers to permit the levers being swung into or out of engagement with the plate. Each of the contact levers F has a 50 beveled nose f that is angularly disposed, as shown most clearly in Figure 2, to cooperate with the similarly beveled end portion p of the projecting yplate P. A pin or bolt R has one end supported by and passes through the disc Q while the other end is contained in a guide sleeve S. The pin R (Cl. 20o-55) has a spring I coiled thereon to abut against the sleeve S and to engage a pin or stop 1" carried by the pin R. This spring urges the pin R outwardly against the lever T and forces the projecting piece U through the opening V in the front of the casing A. A forked lever N straddles the pin R and is arranged between the stop pin r and the disc Q whereby to move with the pin R and to likewise permit independent sliding movement of the pin relative thereto when desired. The front or free end of the control lever G is cut to form a clawed end portion provided along its outer edge with an upper and lower recess W. A suitable spring X as shown is attached along its lower end to the disc Q and has its upper end bent to aline with one or the other of the re,- cesses W on the control lever G to hold the same. The inner wall W of this clawed end portion is tapered as shown in Figures 2, 3 and 4 whereby thev movement of the control lever G into raised position releases the flanged plate P, and the movement of the control lever into lowered position swings the inner wall of the clawed end portion into contact with the flanged plate to raise and to hold the same. The movement of this clawed end to raise the flanged plate also brings the beveled endP into contact with the beveled nose f of the contact levers F to raise and to hold the same spaced from the contact bar L.

This control lever G as shown in Figure 2 is provided with a slot g to aline with the keyhole D, and when a key is inserted into the keyhole, and the same turned in one or the other direction the key contacts with either the wall g or g2 of the slotted portion of the control lever G to move the same into raised or lowered positions.

In the operation of the device and with the parts as shown in Figure 2, the lug or projecting piece U is forced inwardly by the closing of a -door against the pin R and compresses the spring I. The control lever G in this position is held in raised position whereby to permit outwardly swinging movement of the flanged plate P along with the forked lever N, and when the door is opened the pin R and projecting piece U are forced outwardly. This action allows the spring J to force the contact levers F downwardly upon the contact bar, and to close the circuit. It is obvious the circuit will remain closed until the contro1 lever is rotated by a key into the lowered position, as shown in Figure 4. When the control lever is moved into this lowered position it will be readily seen that the clawed end portion engages the flanged plate P to urge the same rearwardly. Its upper beveled edge also engages the beveled nose ofv each of the contact levers and raises the same into spaced relation to the contact bar whereby to open the circuit. The forked lever N is likewise moved rearwardly along with the pin R. When the parts are placed in this position the opening and closing of the door will permit the movement of the projecting piece or lug U along with the necessary movement of the 1 pin R without closing the circuit. In order to place the parts in the position shown in Figure 2, this position is attained by closing the door and moving the control lever into raised position by a key. It is obvious that when this device is placed in a circuit to include an alarm bell that a simple though highly efcient means is provided to control the ringing of the'bell. d

When my invention is applied to a motor car the device is suitably fitted to any convenient .part of the door of the vehicle and when the door is opened an alarm is given by the immediate automatic ringing of the alarm bell 'or'such like, the device being previously set by operating a combination .key and this can only be'stopped by such combination key.

Referring to Figure 6 of the drawings, .this shows the wiring diagram, A being the casing, M the wires, 5 the battery and the alarm bell and U the projecting piece.

Referring to Figures 7 and 8, I l isthe door and l2 is the door frame.

Referring t0 Figure 9 as applied to a brief case, I3 is the ring attached 'to the handle lll of the brief case, l5 being the Bowden wire connection to the device containedwithin casing A.

Referring to Figure 10, i6 is the window sill, il 'being the window and i8 the frame of window.

It is tov be understood, ofV course, that position in which the device is placed and the wiring varies according to the use to which it is to be applied and therefore the details in construction and using may slightly differ from thatdescribed and illustrated and yet come within the ambit of the invention.

Having now particularly described and ascertained the nature of my 'said invention and in What manner the same is to be performed, I declare that what I claim is:-

1.- In a door actuated circuit closer comprisin a casing, a lever loosely connected to said casing and having a lug to move therewith, a frame secured within said casing, a spring pressed bolt slidable in said frame to normally force said lug outwardly from said casing, a forked lever pivotally mounted in said frame to straddle said bolt and to permit movement either of the bolt or the lever and the bolt, a contact lever pivotally mounted to swing in said frame, a contact bar secured in the frame in spaced relation to the contact lever and positioned to permit the same to register, the said forked lever engaging said spring pressed bolt and having a shouldered portion movable therewith into and out of engagement with the contact lever, a control lever pivotally mounted to swing upwardly and downwardly in said frame, and spring means to hold said lever in either position, the said control lever having a clawed end portion to engage said shouldered portion of the forked lever in downward position, and to release the same in upward position to permit the contact bar and lever to register upon the opening of the door, the said frame and casing provided with a keyhole to insert and operate a key whereby the desired position of the control lever is attained.

2. In a door `actuated circuit closer comprising an outer casing, a frame housed within said casing, the said frame and casing cut to provide a keyhole, the said frame having longitudinal slots intersecting said keyhole, a contact lever pivotally mounted in said frame to move within a slot, a contact bar disposed in said frame belowA said contact lever, a forked lever pivotally mounted within said frame and provided with a flanged Contact bar, a spring pressed'bolt mounted within said vframe and between the forked portion` of said lever to permit movement of said bolt with said lever or relative to the same, a loosely mounted lever in said casing to engage said bolt, the said lever having a projection to extend outwardly through said casing by the pressure upon said bolt, and movable inwardly with said bolt by the closing "of the door, and a kcontrol lever pivotally mounted in said frame and adapted to be operated through said keyhole to disengage the control lever from the flanged portion of the forked lever withV the door in closed position, whereby the opening of the door releases the Contact lever to engage the Contact bar for closing the electrical circuit until the said control lever is operated to return the parts to initial position. Y

JOHN DELMORE TAYLOR. 

